Pulver, Penn, and their 16 Lightweights Made TUF5 a Season to Remember.

Like Tito Ortiz and Ken Shamrock before them, Jens Pulver and BJ Penn ignited their dislike for eachother almost immediately upon being announced as the coaches for Spike TV's The Ultimate Fighter series. And once filming began, things didn't get much more civil between the old rivals, as they chomped at the bit while waiting for this Saturday's rematch in Las Vegas.